SOS Inventory review

SOS Inventory is the natural choice for small manufacturers that already run their books in QuickBooks Online. Every plan includes assemblies with unlimited BOM levels, auto-build on shipments, purchase orders generated from stock levels and transaction-level QuickBooks sync covering classes, properties and sales taxes. Companion costs $74.95 a month with 2 users and one location. Plus at $144.95 adds unlimited locations, serial and lot numbers, bin tracking, barcoding and contract manufacturing. Real production control sits on Pro at $199.95 a month with 5 users, which adds work orders, work centers, WIP, job tracking and job cost accounting, labor and overhead tracking, and process and variable-yield manufacturing. Extra users cost $25 a month each on any plan. SOS lacks the capacity scheduling and MPS found in MRPeasy and Odoo, so it fits assemblers and light manufacturers better than plants with complex routings.

Who it is for

QuickBooks Online users that build assemblies and want manufacturing without leaving their accounting system.

Price

Companion $74.95 a month with 2 users; Plus $144.95; Pro $199.95 with 5 users adds work orders and job costing.

Companion $74.95 /mo. For Basic Inventory Management.
Quoted from the vendor pricing page on November 9, 2026.

Key features

• Assemblies with unlimited BOM levels and auto-build on shipments on every plan
• Transaction-level QuickBooks Online integration with automatic sync
• Serial and lot numbers, bin tracking and barcoding from Plus
• Work orders, work centers, WIP, job costing and labor tracking on Pro
• Process and variable-yield manufacturing on Pro

Strengths and weaknesses

• Strength: Deep QuickBooks Online sync including classes and sales taxes
• Strength: Unlimited SKUs and BOM levels on every plan
• Strength: 14-day free trial
• Weakness: Work orders, WIP and job costing need the $199.95 Pro plan
• Weakness: Additional users cost $25 a month each
• Weakness: Only one location on Companion

Key facts

• Companion: $74.95 a month, 2 users
• Pro: $199.95 a month, 5 users
• Extra users: $25 a month each
• Free trial: 14 days

Where it ranks

SOS Inventory is No. 7 in our Best MRP Software verdict.